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Finding the Fourth Proportional to 25,774.52, 38,661.06 and 8,245.40

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Solution

The fourth proportional to 25,774.52, 38,661.06 and 8,245.40 is: 12,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,774.52 : 38,661.06 = 8,245.40 : x
  2. Step 2: Convert to fraction form
    25,774.52/38,661.06 = 8,245.40/x
  3. Step 3: Cross multiply
    25,774.52x = 38,661.06 × 8,245.40
  4. Step 4: Simplify right side
    25,774.52x = 318,775,904.12
  5. Step 5: Solve for x
    x = 318,775,904.12/25,774.52
  6. Step 6: Final answer
    x = 12,367.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.